U4,B3Astronomy:thescienceofthestarsUsingLanguage:Reading2---AVisittoTheMoon导学案【学习目标】1.掌握重点词汇和短语的意义及用法。2.自主学习，合作探究，掌握文中的长难句。3.能利用相关阅读技巧完成阅读任务。4.拓展关于“宇宙”的相关英语背景知识。【重点难点】重点:提高阅读能力；熟记重要词汇短语及其用法。难点:长难句分析预习案PreviewingCases【使用说明及学法指导】1.先通读教材，完成表层理解题，在勾画出文中的疑难点，了解地球引力在航行过程中的三次变化。2.了解一些重点单词及短语的用法.3.掌握倍数的表达法I.一轮阅读做题目A.ReadandthendescribethethreewaysinwhichgravitychangedforLiYanpingandhowhisweightchanged.1)Thepullofgravitybecamevery________shelefttheearth’satmosphere.Hisweightisnormal.2)It____________whenhewasinspace.Heis___________.3)Itwasvery_________whenhewasonthemoon.Heweighs_______thanontheearth.B．Choosethebestanswersaccordingtothetext:1.Howmanytimesdidtheforceofgravitychangeduringthejourney?A.Once.B.Twice.C.Threetimes.D.Fourtimes2.Whenwastheforceofgravitylargestduringthejourney?A.Whentheyjustlefttheearth.B.Whentheyjustarrivedatthemoon.C.Whentheywereinthespace.D.Whentheyleftthemoon.3.Whydidthewriterfalloveronthemoon?A.Becausehesufferedfromairsickness.B.Becausethemoonwasveryrough.C.Becausehehasgotusedtothemoon’sgravity.D.Becausethegravityonthemoondiffersfromthatontheearth.4.Whichofthefollowingiswrongaccordingtothepassage?A.Thegravitybecameverystrongasthewriterlefttheearth’satmosphere.B.Thewriterfloatedinthespaceshipwhenitwasinspace.C.Walkingonthemoonisimpossibleasthegravityhaschanged.D.Thetriptothemoonmadethewriterverytired.5.Whentheygraduallygotclosetothemoon,__________.A.theyfeltthegravitywasstrongerandstrongerB.theydidn’tfeelthegravityC.theywatchedthemoonwassmallerandsmallerD.theywatchedtheearthwaslargerandlargerII.二轮阅读找难点学习建议：在文中勾画出单词、短语、重点句型，并结合语境猜测其含义，再试着关上课本完成下面练习。1._____________________whentheysawtheteamarrive.当看到球队的到来，人群欢呼起来2.a.We_____________________behindthemountain.我们看着太阳在山后落下了b.Everydayasthey______________________________,theirheartswerefilledwithhope.每天当他们看到国家在发展，他们的心里都充满了希望.3.____________________________________,wecanbeginthemeeting.既然每个人都到了，我们就可以开会议了4.I’vebeentryi